.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD476D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1CECD400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,20F5B2B76F8
 
call      qword ptr [7FFBD4724E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44F7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FFC8B8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AFF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AFF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,4214EA185B37
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4724828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,4214EA185B37
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD4724390]
 
mov       rcx,4214EA185B37
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD480E8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD480E370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FF6460]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1CECD400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F8C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F86508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FCD3E0]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F8C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD465C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1CECD401DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48C7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,4214EA185B37
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD47244B0]
 
mov       rcx,4214EA185B37
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AFF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,20F5B2A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD476DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4AFF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD48A57E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD48A5800]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD476D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,250F0400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2917E3D76F8
 
call      qword ptr [7FFBD4724E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44F7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FFCA38]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AFF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AFF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0C8429EFB678D
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4724828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0C8429EFB678D
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD4724390]
 
mov       rcx,0C8429EFB678D
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD480E8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD480E370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FF65E0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,250F0400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F8C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F86508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FCD710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F8C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD465C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,250F0401DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48C7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0C8429EFB678D
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD47244B0]
 
mov       rcx,0C8429EFB678D
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AFF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2917E3C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD476DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4AFF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD48A57E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD48A5800]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD475D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,21783800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,258158376F8
 
call      qword ptr [7FFBD4714E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47796D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FECA38]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,39D3896B1DE
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4714828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,39D3896B1DE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD4714390]
 
mov       rcx,39D3896B1DE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD47FE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD47FE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FE65E0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,21783800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F7C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F76508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FBD710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F7C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD464C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,21783801DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48B7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,39D3896B1DE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD47144B0]
 
mov       rcx,39D3896B1DE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,25815820008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L02
 
test      r8b,18
 
je        short M04_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M04_L00
  
ret
 
M04_L01
  
test      r8b,4
 
je        short M04_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M04_L00
 
M04_L02
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L06
 
M04_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L05
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M04_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M04_L00
 
M04_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L04
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M04_L03
 
jmp       near ptr M04_L04
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD475DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD48957E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD4895800]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD480C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1EF35000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,22FC6FC76F8
 
call      qword ptr [7FFBD4744810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FBCA08]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,60C6F9676320
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4744228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,60C6F9676320
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD471FD20]
 
mov       rcx,60C6F9676320
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD46EF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD46EF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FB64F0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1EF35000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F4C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F46508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F8D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F4C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD462C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1EF39003D08
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48875C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,60C6F9676320
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD471FE40]
 
mov       rcx,60C6F9676320
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,22FC6FB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD481C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,248C6800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,28958867718
 
call      qword ptr [7FFBD4754810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FCDDE8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,38E2E1F932E5
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4754228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,38E2E1F932E5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FD20]
 
mov       rcx,38E2E1F932E5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD46FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD46FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FC75A0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,248C6800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F5DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F57948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F9E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F5DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD463C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,248C6805D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,38E2E1F932E5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FE40]
 
mov       rcx,38E2E1F932E5
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,28958850008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD483C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1D3C1400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,21453287718
 
call      qword ptr [7FFBD4774810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44F7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FEDFF8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0E319F401493
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4774228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0E319F401493
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD474FD20]
 
mov       rcx,0E319F401493
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD471F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD471F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FE7AC8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1D3C1400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F7DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F77948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FBEC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F7DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD465C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1D3C1405D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0E319F401493
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD474FE40]
 
mov       rcx,0E319F401493
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,21453270008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD480C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,10B39000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,14BC6D07718
 
call      qword ptr [7FFBD4744810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FBDFF8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0E7F1979DE8F8
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4744228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0E7F1979DE8F8
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD471FD20]
 
mov       rcx,0E7F1979DE8F8
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD46EF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD46EF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FB7AC8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,10B39000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F4DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F47948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F8EC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F4DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD462C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,10B39005D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48875C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0E7F1979DE8F8
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD471FE40]
 
mov       rcx,0E7F1979DE8F8
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,14BC6CF0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD483C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1D732C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,217C0AF7718
 
call      qword ptr [7FFBD4774810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44F7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FEDAE8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,6FB0BBFBBB16
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4774228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,6FB0BBFBBB16
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD474FD20]
 
mov       rcx,6FB0BBFBBB16
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD471F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD471F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FE7AC8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1D732C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F7DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F77948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FBEC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F7DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD465C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1D72EC03D08
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,6FB0BBFBBB16
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD474FE40]
 
mov       rcx,6FB0BBFBBB16
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,217C0AE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD473D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,20C70800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,24D028276F8
 
call      qword ptr [7FFBD46F4E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFBD4A94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD489B918
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFBD4A94AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFBD46F6718]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FCCF90]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,4AF3F5DE1153
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD46F4828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,4AF3F5DE1153
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD46F4390]
 
mov       rcx,4AF3F5DE1153
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD47DE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD47DE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FC6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,20C70800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F5C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F56508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F9D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F5C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD462C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,20C70801DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD4897320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,4AF3F5DE1153
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD46F44B0]
 
mov       rcx,4AF3F5DE1153
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24D02810008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFBD4875D58]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,24D02810008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L02
 
test      r8b,18
 
je        short M05_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L00
  
ret
 
M05_L01
  
test      r8b,4
 
je        short M05_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L00
 
M05_L02
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L06
 
M05_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L05
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L00
 
M05_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L04
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M05_L03
 
jmp       near ptr M05_L04
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD473DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFBD48757E8]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFBD4875800]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD474D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,2078FC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2481DB476F8
 
call      qword ptr [7FFBD4704E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47696D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFBD4AA4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD4A0DA88
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD48AB918
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD4A0DA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AA4AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4706718]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FDCF90]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0F14F0936FE8E
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4704828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0F14F0936FE8E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD4704390]
 
mov       rcx,0F14F0936FE8E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD47EE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD47EE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FD6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2078FC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F6C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F66508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FAD710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F6C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD463C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2078FC01DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48A7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0F14F0936FE8E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD47044B0]
 
mov       rcx,0F14F0936FE8E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2481DB30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD474DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD48857E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD4885800]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFBD4885D58]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,2481DB30008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD473D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1F127400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,231B53676F8
 
call      qword ptr [7FFBD46F4E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFBD4A94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD489B918
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFBD4A94AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD46F6718]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44C7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FCCF90]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0DCAC64E7CE63
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD46F4828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0DCAC64E7CE63
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD46F4390]
 
mov       rcx,0DCAC64E7CE63
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD47DE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD47DE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FC6B38]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1F127400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F5C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F56508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F9D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F5C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD462C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1F127401DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD4897320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0DCAC64E7CE63
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD46F44B0]
 
mov       rcx,0DCAC64E7CE63
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,231B5350008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L02
 
test      r8b,18
 
je        short M04_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M04_L00
  
ret
 
M04_L01
  
test      r8b,4
 
je        short M04_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M04_L00
 
M04_L02
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L06
 
M04_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L05
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M04_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M04_L00
 
M04_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L04
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M04_L03
 
jmp       near ptr M04_L04
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD473DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD48757E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD4875800]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFBD4875D58]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,231B5350008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD481C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,23947400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,279D54076F8
 
call      qword ptr [7FFBD4754810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
call      qword ptr [7FFBD4A94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD489BBC0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFBD4A94AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD47A6670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FCCF60]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0CB75B2A318FC
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4754228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0CB75B2A318FC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FD20]
 
mov       rcx,0CB75B2A318FC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD46FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD46FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FC6A48]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,23947400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F5C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F56508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F9D710]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F5C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD463C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,23947405D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0CB75B2A318FC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FE40]
 
mov       rcx,0CB75B2A318FC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,279D53F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFBD477EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,279D53F0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD481C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1DA9E000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,21B2FFC7718
 
call      qword ptr [7FFBD4754810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFBD4A94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD489BC20
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFBD4A94AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFBD47A6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FCE388]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,34557A46B5E3
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4754228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,34557A46B5E3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FD20]
 
mov       rcx,34557A46B5E3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD46FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD46FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FC7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1DA9E000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F5DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F57948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F9E940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F5DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD463C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1DA9E005D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD4897628]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,34557A46B5E3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FE40]
 
mov       rcx,34557A46B5E3
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,21B2FFB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFBD477EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,21B2FFB0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M05_L02
 
M05_L00
  
test      r8,r8
 
je        short M05_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M05_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M05_L02
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M05_L02
  
ret
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L06
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L10
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L02
 
M05_L06
  
cmp       r8,800
 
ja        short M05_L09
 
mov       r9,r8
 
shr       r9,6
 
M05_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L08
  
cmp       rcx,rdx
 
je        short M05_L02
 
M05_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD482C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,29B05000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2DB92F67718
 
call      qword ptr [7FFBD4764810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFBD4AA4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD4A0DA88
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD48ABE68
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD4A0DA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AA4AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD47B6670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FDE538]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,975A6CF0B0F9
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4764228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,975A6CF0B0F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD473FD20]
 
mov       rcx,975A6CF0B0F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD470F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD470F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FDC030]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,29B05000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F6DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F67948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FAEC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F6DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD464C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,29B05005CE0
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD487D1F0]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,975A6CF0B0F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD473FE40]
 
mov       rcx,975A6CF0B0F9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2DB92F50008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M04_L02
 
M04_L00
  
test      r8,r8
 
je        short M04_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M04_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M04_L02
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M04_L02
  
ret
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L06
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L10
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L02
 
M04_L06
  
cmp       r8,800
 
ja        short M04_L09
 
mov       r9,r8
 
shr       r9,6
 
M04_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L08
  
cmp       rcx,rdx
 
je        short M04_L02
 
M04_L09
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFBD478EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,2DB92F50008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD481C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,164ADC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1A53BA97718
 
call      qword ptr [7FFBD4754810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FFBD4A94CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD489BBC0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD49FDA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FFBD4A94AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FFBD47A6670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FCE538]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,541139046875
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4754228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,541139046875
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FD20]
 
mov       rcx,541139046875
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD46FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD46FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FCC030]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,164ADC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F5DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F57948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4F9EC70]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F5DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD463C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,164A9C03D08
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,541139046875
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD472FE40]
 
mov       rcx,541139046875
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1A53BA80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FFBD477EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,1A53BA80008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD482C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1AAD8800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1EB6A567718
 
call      qword ptr [7FFBD4764810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFBD4AA4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFBD4A0DA88
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1AC2
 
mov       rdx,7FFBD48ABBC0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFBD4A0DA88
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFBD4AA4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFBD47B6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFBD44E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFBD4FDDE48]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,16900E105C5C
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFBD4764228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,16900E105C5C
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD473FD20]
 
mov       rcx,16900E105C5C
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFBD470F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFBD470F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFBD4FD7AF8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1AAD8800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFBD4F6DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFBD4F67948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFBD4FAE940]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFBD4F6DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFBD464C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1AAD8805D00
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFBD48A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,16900E105C5C
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFBD473FE40]
 
mov       rcx,16900E105C5C
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1EB6A550008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFBD478EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1EB6A550008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1DC7B800428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,21D097E76F8
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4FECE40]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4FECE40]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4FECE40]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        near ptr M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       ecx,ecx
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4FECE40]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       ecx,ecx
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4FECE40]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+30],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,21D097D0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F4BE6313E3A8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F4BE6313E3A8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,21D097D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,23412C00428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,274A4AB76F8
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4FFCE40]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4FFCE40]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4FFCE40]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4FFCE40]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4FFCE40]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+30],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,274A4AA0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5EE4C51BC783
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5EE4C51BC783
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,274A4AA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,17F40C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1BFCE8D76F8
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4E4DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4E4DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4E4DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4E4DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4E4DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1BFCE8C0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8BBDB6753407
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8BBDB6753407
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1BFCE8C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFBFB4F7370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFBFB510750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2690D800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2A99B6076F8
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2A99B5F0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0CB7070E4E15
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0CB7070E4E15
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2A99B5F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFBFB4F7370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFBFB510750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,273B2400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2B4443E7718
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2B4443D0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3714DA97057F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3714DA97057F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2B4443D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFBFB4F7370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFBFB510750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1DEBD800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,21F4F687718
 
call      qword ptr [7FFBD45A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4E7DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4E7DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4E7DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4E7DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4E7DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,21F4F670008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,471460A10F96
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,471460A10F96
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4837318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,21F4F670008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFBFB4F7370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFBFB510750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,152F5000428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,19383087718
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        near ptr M00_L24
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       r13,rax
 
mov       esi,[r13+8]
 
test      esi,esi
 
je        near ptr M00_L25
 
movzx     ecx,word ptr [r13+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       edi,[rsi-1]
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L25
 
M00_L08
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L25
 
M00_L09
  
xor       ebp,ebp
 
test      esi,esi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,ebp
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       ebp
 
cmp       esi,ebp
 
jg        short M00_L10
 
M00_L13
  
lea       edi,[rsi-1]
 
cmp       edi,ebp
 
jl        short M00_L20
 
mov       ecx,edi
 
or        ecx,ebp
 
jl        short M00_L17
 
cmp       esi,edi
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       edi,esi
 
jae       near ptr M00_L26
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L17
 
M00_L20
  
mov       r14d,edi
 
sub       r14d,ebp
 
inc       r14d
 
cmp       esi,r14d
 
jne       short M00_L22
 
mov       rsi,r13
 
M00_L21
  
mov       [rsp+30],rsi
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      r14d,r14d
 
je        short M00_L23
 
mov       ecx,r14d
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
mov       r8d,r14d
 
cmp       [rsi],sil
 
lea       rcx,[rsi+0C]
 
mov       edx,ebp
 
lea       rdx,[r13+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rsi,19383070008
 
jmp       short M00_L21
 
M00_L24
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L01
 
M00_L25
  
mov       rsi,r13
 
jmp       short M00_L21
 
M00_L26
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1885E1F0E75B
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1885E1F0E75B
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L04
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M02_L03
 
jmp       near ptr M02_L04
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,19383070008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFBFB4F7370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFBFB510750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,21EA9000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,25F37037718
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFBFAA92E40
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFBD4E6DE18]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,25F37020008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0CBC07C1D3845
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0CBC07C1D3845
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25F37020008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFBFB4F7370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFBFB510750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1A9B2C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1EA44D976F8
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,39D7556E0CFF
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD473C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD473C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,39D7556E0CFF
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD473C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD46F6790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L04
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M02_L03
 
jmp       near ptr M02_L04
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD473DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD48757E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD4875800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1EA44D80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,164ED000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1A57ACC76F8
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0AD3E531D3A40
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0AD3E531D3A40
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1A57ACB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,27E3C000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2BECE1776F8
 
call      qword ptr [7FFBD45A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0BB7BF1436C8E
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0BB7BF1436C8E
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4837318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2BECE160008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1C832400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,208C43376F8
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,710E72059DAF
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,710E72059DAF
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,208C4320008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1D6CBC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2175DC97718
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,658DC1FD1B04
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,658DC1FD1B04
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2175DC80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1FF00C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,23F8E977718
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,66E93585721
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,66E93585721
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,23F8E960008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,23897800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,27929587718
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,46813154293D
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,46813154293D
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27929570008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1E315000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,223A2E37718
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,21B26B648231
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,21B26B648231
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,223A2E20008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1F857800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rbp
 
mov       [rsp+48],rax
 
lea       r8,[rsp+40]
 
mov       [rsp+28],r8
 
mov       dword ptr [rsp+30],2
 
lea       r8,[rsp+28]
 
mov       rdx,238E94F76F8
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,2BBBDF900EEC
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,2BBBDF900EEC
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,238E94E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,22DB0800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,26E425476F8
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0C6F86CCA16AC
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0C6F86CCA16AC
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,26E42530008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,27240C00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2B2D2AB76F8
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,279E95409E6C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,279E95409E6C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2B2D2AA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1858FC00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,1C6219E76F8
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,2CBB48BB2C0D
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,2CBB48BB2C0D
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1C6219D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,11346800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,153D8697718
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,43F0FB4386AF
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,43F0FB4386AF
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,153D8680008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1EA82400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,22B14317718
 
call      qword ptr [7FFBD4576C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,2DFE9F422FA0
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,2DFE9F422FA0
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4807318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,22B14300008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,29B08400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2DB9A3D7718
 
call      qword ptr [7FFBD45A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,7426B79F5E29
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,7426B79F5E29
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4837318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2DB9A3C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,29567400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2D5F5337718
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,858A05C2F430
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,858A05C2F430
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2D5F5320008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,188B9000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rcx
 
mov       rcx,1C946ED9078
 
mov       [rsp+48],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],2
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1C946EE76F8
 
call      qword ptr [7FFBD45A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,16E2F75C1EE2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,16E2F75C1EE2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4837318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1C946ED0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1CB03800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,20B95869078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,20B958776F8
 
call      qword ptr [7FFBD45A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3A1DE7B8731C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3A1DE7B8731C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4837318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,20B95860008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,23834400428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,278C6219078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,278C62276F8
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F5BC538E6608
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F5BC538E6608
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,278C6210008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,17A03C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1BA95AA9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1BA95AB76F8
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0DC5DCB0BBD31
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0DC5DCB0BBD31
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L02
 
M02_L00
  
test      r8,r8
 
je        short M02_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L02
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L02
  
ret
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L02
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L08
  
cmp       rcx,rdx
 
je        short M02_L02
 
M02_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1BA95AA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,20943C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,249D5AE9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,249D5AF7718
 
call      qword ptr [7FFBD4596C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0DBF56D4E72F0
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0DBF56D4E72F0
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4827318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,249D5AE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,2C1C4C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,30252A29078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,30252A37718
 
call      qword ptr [7FFBD45A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,7EF80C0F033F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,7EF80C0F033F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4837318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,30252A20008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,23C60800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,27CF2599078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,27CF25A7718
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0FE1D2A1ADF38
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0FE1D2A1ADF38
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27CF2590008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,21E03000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,25E94FF9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,25E95007718
 
call      qword ptr [7FFBD4586C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0E4C482BF8DD4
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFBD48170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD48171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0E4C482BF8DD4
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFBD4817318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFBD47A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25E94FF0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FD6040]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,1EF8D406B10
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2301F381C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFBD482C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2301F380008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1EF8D406B10
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FD64F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2530A40AB00
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2939C171B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFBD474D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFBD47696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2939C170008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2530A40AB00
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FD6040]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1503D406B10
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,190CF4C1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFBD482C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,190CF4C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1503D406B10
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FD64F0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2A117C06B10
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2E1A99C1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFBD482C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2E1A99C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2A117C06B10
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FD7AC8]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,28B3E80AB00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2CBCC601B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFBD474D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2CBCC600008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,28B3E80AB00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FF75A0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,221E2808B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,262746E1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFBD476D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,262746E0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,221E2808B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FD75A0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,15211408B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1929F0C1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFBD474D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1929F0C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,15211408B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFBD4FC78D0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,27B7BC08B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2BC0DCA1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFBD473D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2BC0DCA0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,27B7BC08B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2D0A2F19078
 
call      qword ptr [7FFBD4FE6508]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rsi,rcx
 
mov       rdi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2D0A2F19078
 
test      rsi,rsi
 
cmove     rsi,rcx
 
mov       rcx,29015008B08
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rdi],0
 
je        short M01_L07
 
mov       rdx,2D0A2F11C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rsi
 
call      qword ptr [7FFBD483C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2D0A2F10008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,29015008B08
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1913B029078
 
call      qword ptr [7FFBD4FE6388]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,1913B029078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,150A9006B10
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1913B021C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rdi
 
call      qword ptr [7FFBD483C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1913B020008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,150A9006B10
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1E288389078
 
call      qword ptr [7FFBD4FD6508]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1E288389078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1A1FA408B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1E288381C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r13+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFBD482C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1E288380008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1A1FA408B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1F1B44A9078
 
call      qword ptr [7FFBD4FC6388]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1F1B44A9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1B122408B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1F1B44A1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFBD481C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1F1B44A0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1B122408B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1A44C9E9078
 
call      qword ptr [7FFBD4FE7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1A44C9E9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,163BAC06B10
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1A44C9E1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFBD483C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1A44C9E0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,163BAC06B10
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,282FFC89078
 
call      qword ptr [7FFBD4FF7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,282FFC89078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,24279C02B38
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,282FFC81B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFBD476D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,282FFC80008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,24279C02B38
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2A6439C9078
 
call      qword ptr [7FFBD4FF7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2A6439C9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,265B1C08B08
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2A6439C1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFBD476D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2A6439C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,265B1C08B08
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2268B459078
 
call      qword ptr [7FFBD4FF7AE0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2268B459078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1E605402B38
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2268B451B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFBD476D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2268B450008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1E605402B38
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FC6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L10
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L10
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L10
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L09
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        near ptr M01_L08
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L10
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        short M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        near ptr M01_L16
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L05
 
M01_L04
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L07
 
M01_L05
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L11
 
jmp       near ptr M01_L14
 
M01_L08
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L01
 
M01_L09
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       r15d,1
 
cmp       r14d,1
 
jle       short M01_L14
 
M01_L11
  
test      esi,esi
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L15
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L17
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L18
 
M01_L12
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L13
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L07
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       short M01_L19
 
jmp       near ptr M01_L03
 
M01_L14
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L13
 
M01_L16
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L17
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L12
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFBD477ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FC64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L16
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L11
 
M01_L10
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L17
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFBD477ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FC64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L12
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L12
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L11
 
jmp       near ptr M01_L16
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       short M01_L19
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L12
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       short M01_L12
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFBD477ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FB6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L10
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L10
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L10
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L09
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        near ptr M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L10
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        short M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L07
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L05
 
M01_L04
  
mov       [rbx+18],r13d
 
jmp       short M01_L07
 
M01_L05
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L06
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L11
 
M01_L08
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L09
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       r15d,1
 
cmp       r14d,1
 
jle       short M01_L08
 
M01_L11
  
test      esi,esi
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L16
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L18
 
M01_L12
  
mov       [rbx+18],r13d
 
M01_L13
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       short M01_L19
 
jmp       near ptr M01_L03
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L12
 
M01_L16
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L13
 
M01_L17
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L01
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFBD476ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FB7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L12
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L12
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L11
 
jmp       near ptr M01_L16
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       short M01_L19
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L12
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       short M01_L12
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFBD476ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FD7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L08
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L08
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L08
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        short M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L06
 
jmp       near ptr M01_L12
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L09
 
jmp       near ptr M01_L19
 
M01_L07
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L08
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L09
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L11
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        near ptr M01_L05
 
jmp       short M01_L16
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       near ptr M01_L06
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFBD478ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FB7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rbp,r8
 
mov       esi,r9d
 
mov       rdi,[rsp+90]
 
test      rdi,rdi
 
je        near ptr M01_L24
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
je        near ptr M01_L25
 
mov       rcx,[rdi+10]
 
test      rcx,rcx
 
jne       near ptr M01_L05
 
M01_L00
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L22
 
M01_L01
  
test      esi,esi
 
je        near ptr M01_L14
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L18
 
movzx     r8d,word ptr [rbp]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L03
 
M01_L02
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L14
 
M01_L03
  
movzx     r8d,word ptr [rbp+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L04
  
test      rcx,rcx
 
je        near ptr M01_L09
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L09
 
jmp       near ptr M01_L11
 
M01_L05
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L26
 
M01_L06
  
test      rcx,rcx
 
je        near ptr M01_L00
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L00
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L15
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L12
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L10
 
M01_L07
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L00
 
M01_L08
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L01
 
jmp       near ptr M01_L22
 
M01_L10
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L11
  
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L08
 
jmp       short M01_L17
 
M01_L12
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L07
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rbp
 
mov       r8d,esi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
mov       eax,r15d
 
mov       rcx,[rdi+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L09
 
jmp       short M01_L16
 
M01_L15
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L00
 
M01_L16
  
mov       rdx,offset MT_System.String
 
cmp       [rcx],rdx
 
jne       near ptr M01_L27
 
jmp       near ptr M01_L04
 
M01_L17
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L21
 
jmp       short M01_L19
 
M01_L18
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rbp
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L02
 
M01_L19
  
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L23
 
M01_L20
  
mov       r13d,[rsp+24]
 
mov       [rbx+18],r13d
 
jmp       near ptr M01_L09
 
M01_L21
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L20
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
movzx     edx,word ptr [rdx+2]
 
mov       [rcx+2],dx
 
jmp       short M01_L20
 
M01_L24
  
mov       ecx,6
 
call      qword ptr [7FFBD476ED00]
 
int       3
 
M01_L25
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L26
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L06
 
M01_L27
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L04
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFBD4FC7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFBD477ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,21329D39084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FB64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L17
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L18
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L06
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L06
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L11
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        near ptr M01_L11
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L10
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        near ptr M01_L14
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L04
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       near ptr M01_L11
 
M01_L05
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       r15d,1
 
cmp       r14d,1
 
jle       short M01_L12
 
M01_L07
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L13
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L08
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L08
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L11
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       short M01_L16
 
jmp       near ptr M01_L03
 
M01_L10
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L11
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L07
 
M01_L12
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L09
 
M01_L14
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L08
 
M01_L16
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 
M01_L17
  
mov       ecx,6
 
call      qword ptr [7FFBD476ED00]
 
int       3
 
M01_L18
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2172CA59084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FC64C0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L13
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L13
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L15
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD477ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2475ECA9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FE6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L06
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L06
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L11
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L11
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        near ptr M01_L10
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M01_L13
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L04
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L11
 
M01_L05
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L07
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L12
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L08
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L08
  
mov       [rbx+18],r13d
 
M01_L09
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L11
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L19
 
jmp       near ptr M01_L03
 
M01_L10
  
mov       rcx,rbx
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L11
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L07
 
jmp       short M01_L15
 
M01_L12
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L08
 
M01_L13
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD479ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,232E7BE9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FB6010]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L06
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L06
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L11
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L11
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        near ptr M01_L10
 
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        near ptr M01_L13
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     edx,word ptr [rdx+2]
 
mov       [rcx+2],dx
 
M01_L04
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       near ptr M01_L11
 
M01_L05
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L07
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L12
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L08
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L08
  
mov       [rbx+18],r13d
 
M01_L09
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L11
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L19
 
jmp       near ptr M01_L03
 
M01_L10
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L11
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L07
 
jmp       short M01_L15
 
M01_L12
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L08
 
M01_L13
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD476ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,24EE2629084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FD7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD478ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2EBAE659084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FE7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD479ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2D0C74F9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FA7570]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD47FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD47FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFBD47FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD475ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2B9E1819084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFBD4FB7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFBD476ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,253FFC40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L03
 
jmp       short M01_L04
 
M01_L08
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M01_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,168DD0D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,21C52C00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47EEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFBD4615B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD47FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4414000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AAF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD461D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD475E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD475E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4414000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AAF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD461D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2542BEB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L02
 
M01_L00
  
test      r8,r8
 
je        short M01_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L02
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L02
  
ret
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L10
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L02
 
M01_L06
  
cmp       r8,800
 
ja        short M01_L09
 
mov       r9,r8
 
shr       r9,6
 
M01_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L08
  
cmp       rcx,rdx
 
je        short M01_L02
 
M01_L09
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2AE36B30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24BCAB10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,19C5D240008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24AF0DB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1B9ABC08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4D0E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FD60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CFE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1B9ABC08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-30]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M03_L04
 
mov       r8,[rdi+8]
 
mov       r15d,[rdi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M03_L07
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M03_L06
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
add       r14d,r15d
 
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
mov       r8d,r14d
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1FA3DAE0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1B9ABC08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-38]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-38]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,28725C08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4CEE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FB60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CDE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,28725C08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD480C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,2C7B7C40008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,28725C08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD480C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD480C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,17B25408160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4D0E4C0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FD60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CFEA18]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,17B25408B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1BBB7230008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,17B25408B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1E921C08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4CFE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FC60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CEEA18]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1E921C08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,229B3A80008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1E921C08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1B0CFC06168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4CFE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FC7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CEEA18]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1B0CFC06B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1F161960008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1B0CFC06B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1617CC08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4CEE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FB7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CDE9A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1617CC08B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD480C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1A20EAA0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1617CC08B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD480C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD480C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,2D44A006168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4D0E560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FD7948]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CFE688]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEBF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,2D44A006B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,314DBEC0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEBF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2D44A006B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEBC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD482C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEBC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1A5A5C06168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFBD4CFE560]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FC7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFBD4CEEA18]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45841F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1A5A5C06B10
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1E6379F0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1A5A5C06B10
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFBD481C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L04
 
M00_L00
  
mov       ecx,[rsi+1C]
 
add       ecx,[rsi+18]
 
test      ecx,ecx
 
jle       short M00_L01
 
mov       ecx,[rsi+18]
 
mov       rdx,[rsi+8]
 
cmp       [rdx+8],ecx
 
ja        near ptr M00_L07
 
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD480C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L01
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,237C2330210
 
call      qword ptr [7FFBD4576B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L02
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L03
 
mov       r8,1F730400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L03
 
mov       r8,1F730400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L03
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L08
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L05
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L06
 
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L05
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L07
  
mov       ecx,ecx
 
mov       word ptr [rdx+rcx*2+10],2C
 
inc       dword ptr [rsi+18]
 
jmp       near ptr M00_L01
 
M00_L08
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M00_L10
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L09
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L04
 
M00_L10
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L09
 
M00_L11
  
call      qword ptr [7FFBD476EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L02
 
M00_L13
  
call      qword ptr [7FFBD4714030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L03
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD476EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,237C2330008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L05
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD483C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,247D87E0210
 
call      qword ptr [7FFBD45A6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+40]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,20746800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,20746800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       short M00_L07
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L06
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L09
 
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L07
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L10
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L08
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L05
 
M00_L09
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        near ptr M00_L06
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L10
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L08
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L08
 
M00_L11
  
call      qword ptr [7FFBD479EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4744030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD45A6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD479EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD45A6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD45A6B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,247D87E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD483C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,1B86CCD0210
 
call      qword ptr [7FFBD45A6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,177DAC00438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,177DAC00418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFBD479EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4744030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD45A6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD479EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD45A6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD45A6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L02
 
test      r8b,18
 
je        short M03_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L00
  
ret
 
M03_L01
  
test      r8b,4
 
je        short M03_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L00
 
M03_L02
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L05
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L00
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L03
 
jmp       short M03_L04
 
M03_L08
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L09
  
jmp       qword ptr [7FFBD4655B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M03_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M03_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD483CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD479E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD479E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4454000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4AEF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD465D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,1B86CCD0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD482C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,20A07FE0210
 
call      qword ptr [7FFBD4596B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1C976000438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1C976000418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD482CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFBD481EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFBD478EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4734030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD478EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4596B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4645B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD482CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD478E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD478E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4444000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ADF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD464D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,20A07FE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD481C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,246DE4D0210
 
call      qword ptr [7FFBD4586B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,2064C800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,2064C800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFBD477EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4724030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD477EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,246DE4D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD480C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,1C31C820210
 
call      qword ptr [7FFBD4576B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1828E800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1828E800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFBD476EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4714030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD476EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,1C31C820008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD481C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,1639DAA0210
 
call      qword ptr [7FFBD4586B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1230FC00438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1230FC00418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD481CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFBD480EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFBD477EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4724030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD477EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4586B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L02
 
M03_L00
  
test      r8,r8
 
je        short M03_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L02
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L02
  
ret
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L02
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L08
  
cmp       rcx,rdx
 
je        short M03_L02
 
M03_L09
  
jmp       qword ptr [7FFBD4635B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD481CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD477E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD477E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4434000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ACF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD463D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,1639DAA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFBD480C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2A7D20B0210
 
call      qword ptr [7FFBD4576B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,26744000438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,26744000418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFBD480CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFBD47FEB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFBD476EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFBD4714030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFBD476EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFBD4576B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFBD4625B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFBD480CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFBD476E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFBD476E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FFBD4424000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFBD4ABF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFBD462D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2A7D20B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFBFB4E41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFBFB4F7B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFBFB4F8B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FE64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,29CA4806B10
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFBD483CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD483C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFBD482EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2DD36720008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EBF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,29CA4806B10
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD483C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EBC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FB64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,26ED2402B38
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD472D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4615B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFBD472D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFBD47496D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD472D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2AF5C590008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,26ED2402B38
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD472D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CDEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FF64D8]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1CEEC008B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       eax,eax
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD476D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,20F7DDB0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1CEEC008B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FF6028]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,20E7100AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD476D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,24F02F30008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,20E7100AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FC7588]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,2358180AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD473D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,276136D0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,2358180AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FE7588]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,235DFC0AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFBD47796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD475D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2766DBF0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,235DFC0AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FE7588]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,26C9DC0AB00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFBD47796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD475D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2AD2FB70008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0F258]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,26C9DC0AB00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0F228]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFBD4FC7AB0]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,2793A808B08
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFBD473D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2B9CC4C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,2793A808B08
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FE6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1C5BD80AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2064F7A0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1C5BD80AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FC6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45741F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1E41380AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,224A58A0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF88]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1E41380AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF58]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FF6568]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45A41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1CE23002B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4655B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD476D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,20EAD040008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1CE23002B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD476D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D1EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FD60B8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1D63200AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,216C3E90008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1D63200AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FE7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,27840808B08
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4645B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFBD475D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2B8D2550008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,27840808B08
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD475D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4D0EEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FC7948]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45741F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,20D86402B38
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,24E101E0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,20D86402B38
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FD7B40]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2B0DEC0AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4635B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD474D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2F170910008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2B0DEC0AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD474D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CFEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.15 (8.0.1525.16413), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFBD4FC7618]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFBD45741F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2044480AB00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFBD4625B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFBD473D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFBD47596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,244D64E0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2044480AB00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFBD473D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFBD4CEEEE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret